Acer Aspire 4935 Service Guide

Chapter 231
Main
The Main screen allows the user to set the system time and date as well as enable and disable boot option 
and recovery.
NOTE: The screen above is for your reference only. Actual values may differ.
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
ParameterDescriptionFormat/Option
System Time Sets the system time. The hours are displayed with 24-
hour format.Format: HH:MM:SS 
(hour:minute:second) 
System Date...

32Chapter 2
Advanced
The Advanced screen allows the user to configure the various advanced BIOS options.
IMPORTANT:Making incorrect settings to items on these pages may cause the system to malfunction. Unless
you have experience adjusting these items, we recommend that you leave these settings at the default values. 
If making settings to items on these pages causes your system to malfunction or prevents the system from 
booting, open BIOS and choose Load Optimal Defaults in the Exit menu to boot up...

Chapter 233
Video 
ConfigurationEnter the Video Configuration menu.•Render Standby
•IGD - Device2, Function1
•IGD - Pre-allocat Memory
•IGD - DVMT Size
•Clock Chip Initialize
•Enabled CK SSC
•IGD - Boot Type
•IGD - LCD Panel Type
•IGD - TV
•IGD - PAVP Mode
USB 
ConfigurationEnter the USB Configuration menu.
•USB Legacy
•EHCI 1 and 2
•UCHI 1 to 5
•Per-Port Control
•Usb Port 0 to 11
Chipset 
ConfigurationEnter the Chipset Configuration menu.
•Port 80h Cycles
•DMI Link ASPM
•PCI Latency Timer
•VT-d
•iTPM...

34Chapter 2
PCI Express Root 
Port nEnter the PCI Express Root Port 2 to 6 menus. 
NOTE: n = port number 2 to 6.•PCI Express Root Port n
•VC1 Cable
•ASPM
•Automatic ASPM
•URR
•FER
•NFER
•CER
•CTO
•SEFE
•SENFE
•SECE
•PME Interrupt
•PME SCI
•Hotplug SCI
ASF Configuration Enter the ASF Configuration menu.
•Mini Watchdog Timeout
•BIOS Boot Timeout
•OS Boot Timeout
•Power-on wait time
ParameterDescriptionSubmenu Items 

Chapter 235
Security
The Security screen contains parameters that help safeguard and protect your computer from unauthorized 
use.
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
NOTE: The following sub-options are all requires the Supervisor password for changes and should be grayed 
out if the user password was used to enter setup.
NOTE: When you are prompted to enter a password, you have three tries before the system...

36Chapter 2
Setting a Password
Follow these steps as you set the user or the supervisor password:
1.Use the ↑ and ↓ keys to highlight the Set Supervisor Password parameter and press the Enter key. The 
Set Supervisor Password box appears:
2.Type a password in the “Enter New Password” field. The password length can not exceeds 8 
alphanumeric characters (A-Z, a-z, 0-9, not case sensitive). Retype the password in the “Confirm New 
Password” field.
IMPORTANT:Be very careful when typing your password because...

Chapter 237
Changing a Password
1.Use the ↑ and ↓ keys to highlight the Set Supervisor Password parameter and press the Enter key. The 
Set Password box appears.
2.Type the current password in the Enter Current Password field and press Enter.
3.Type a password in the Enter New Password field. Retype the password in the Confirm New Password 
field.
4.Press Enter. After setting the password, the computer sets the User Password parameter to “Set”.
5.If desired, you can enable the Password on boot...

38Chapter 2
Power
The Power screen allows the user to configure CPU and power management options.
The table below describes the items, menus, and submenus in this screen. Settings in boldface are the default 
and suggested parameter settings. 
ParameterDescriptionSubmenu Items
Advanced CPU 
ControlEnter the Advanced CPU Control menu.  • P-States (IST)
• Boot performance mode
• Thermal Mode
• CMP Support
• Use XD capability
• VT Support
• SMRR Support
•C-States
• Enhanced C-States
• C-State Pop Up Mode
•...

Chapter 239
Platform Power 
ManagementEnter the Platform Power Management 
menu. • PCI Clock Run
Break Event Enter the Break Event menu. • Storage Break Event
• PCIE Break Event
• PCI Break Event
• EHCI Break Event
• UHCI Break Event
• HDA Break Event
ACPI S3Enable or Disable ACPI S1/S3 Sleep State. N/A
Wake on PMEEnable or Disable wake up when the 
system power is off and a PCI Power 
Management Enable wake up event occurs.N/A
Wake on Modem 
RingEnable or Disable wake up when the 
system power is off...

40Chapter 2
Boot
This menu allows the user to decide the order of boot devices to load the operating system. Bootable devices 
includes the USB diskette drives, the onboard hard disk drive and the DVD drive in the module bay.
             InsydeH20 Setup Utility Rev 3.5
Information     Main     Advanc ed S ec urity P owerBootExit
Item Spec ific  Help
B oot priority  order:Us e <
↑> or <
↓> to select
a devic e, then pres s
1. IDE0 : ST9160310AS< F5>  to move it down the
2. IDE1 : Slimty pe DV D A DS8A 2S...